National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Light Snow Fog/Mist

33°F

1°C

Humidity 96%
Wind Speed NW 12 G 21 mph
Barometer 29.74 in (1007.2 mb)
Dewpoint 32°F (0°C)
Visibility 1.75 mi
Wind Chill24°F (-4°C)
Last update 12 Mar 8:56 pm EDT
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Snow, possibly mixed with rain before midnight, then a chance of snow between midnight and 3am. Low around 27. Northwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.

    Low: 27 °F

    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: Increasing clouds, with a high near 43. West wind 6 to 9 mph becoming southwest in the afternoon.

    High: 43 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A chance of rain, mainly between 11pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 34. South wind 7 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 45. West wind 11 to 15 mph, with gusts as high as 36 mph.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. West wind 6 to 8 mph, with gusts as high as 29 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 43. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 43 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain after 3am. Mostly cloudy, with a low around 34. Southeast wind 6 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday

    Monday: Rain, mainly after 7am. High near 53. South wind 14 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.

    High: 53 °F

    Rain

  • Monday Night

    Monday Night: Rain. Low around 36. South wind 13 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.

    Low: 36 °F

    Rain

Detailed Forecast

Tonight
Snow, possibly mixed with rain before midnight, then a chance of snow between midnight and 3am. Low around 27. Northwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.
Friday
Increasing clouds, with a high near 43. West wind 6 to 9 mph becoming southwest in the afternoon.
Friday Night
A chance of rain, mainly between 11pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 34. South wind 7 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 45. West wind 11 to 15 mph, with gusts as high as 36 mph.
Saturday Night
Mostly clear, with a low around 29. West wind 6 to 8 mph, with gusts as high as 29 mph.
Sunday
Mostly cloudy, with a high near 43. Light and variable wind becoming east around 6 mph in the afternoon.
Sunday Night
A chance of rain after 3am. Mostly cloudy, with a low around 34. Southeast wind 6 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday
Rain, mainly after 7am. High near 53. South wind 14 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.
Monday Night
Rain. Low around 36. South wind 13 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.
Tuesday
Rain likely, mainly before 9am. Partly sunny, with a high near 45. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 24. West wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 35. West wind around 7 mph.
Wednesday Night
Partly cloudy, with a low around 26. West wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 39. South wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
4:59 pm EDT Mar 12, 2026
Forecast Valid:
9pm EDT Mar 12, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation